Abstract

The paper reports data on the karyotype structure and hemoglobin composition of Chironomus sp. Ya3 (Kiknadze, Istomina et Salova, 1996) found in a pond in the Pechora River delta within the permafrost zone. The collected larvae morphologically corresponded to the original description. Of the 9 chromosome banding sequences detected in them, Ya3A2 and Ya3E2 were for the first time recorded in the homozygous and heterozygous state, respectively. Electrophoresis data demonstrated a complex hemoglobin structure. Disc electrophoresis revealed 9 fractions with relative mobility Rf from 0.43 to 0.84, formed by subunits with molecular weights from 11.5 to 15.6 kDa. The complex structure of the hemoglobin probably ensures survival of the species under the extreme local environmental conditions. The species resembles Ch. plumosus in the native hemoglobin composition and shows great similarity with Ch. riparius in the subunit composition of individual hemoglobin fractions.

中文翻译：

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Chironomus sp。的核型特征和血红蛋白组成。Pechora三角洲的Ya3（双翅目，Chironomidae）

摘要

该论文报道了Chironomus sp。的核型结构和血红蛋白组成的数据。YA3（Kiknadze，Istomina等Salova，1996）在多年冻土区内的伯朝拉河三角洲池塘找到。所收集的幼虫在形态上与原始描述相对应。在其中检测到的9条染色体条带序列中，Ya3A2和Ya3E2首次分别以纯合和杂合状态记录。电泳数据显示出复杂的血红蛋白结构。圆盘电泳显示9个相对迁移率Rf的馏分分子量为11.5至15.6 kDa的亚基形成的分子量为0.43至0.84。血红蛋白的复杂结构可能确保物种在极端的局部环境条件下生存。该物种类似于Ch。天然血红蛋白组成中的plumosus，与Ch。riparius中单个血红蛋白部分的亚基组成。